KYMCO MXU 300 - Page 123

7. CYLINDER HEAD/VALVES
7-6
MXU 300/250
CAMSHAFT HOLDER DISASSEMBLY
Take out the valve rocker arm shafts.
Remove the valve rocker arms, arm shafts
and stop plate.
CAMSHAFT HOLDER INSPECTION
Inspect the camshaft holder for wear or
damage.
Inspect the rocker arm shaft for blue
discoloration or grooves.
If any defects are found, replace the rocker
arm shaft with a new one, then inspect
lubrication system.
Inspect the rocker arm bore, cam lobe
contact surface and adjuster surface for
wear/pitting/scratches/blue discoloration.
If any defects are found, replace the rocker
arm shaft with a new one, then inspect
lubrication system.
Camshaft Holde
r
Rocker Arm Shafts
Rocker Arm Bore
Contact Surface
Adjuster Surface
Stop Plate
Rocker Arms
Rocker Arm Shafts